Resideo 390427B Reducer Bushing 1/2" X 3/8"

The Resideo 390427B Reducer Bushing is a compact piping connector used for joining sections of different pipe sizes, especially in refrigerant lines, water piping, and pressure control assemblies. It allows a smooth transition between a 1/2 inch and 3/8 inch connection by providing a secure mechanical fit that maintain alignment and flow continuity. In HVAC systems, it is commonly positioned within line assemblies to adapt sizing differences between component during system layout. The reducer bushing is fitted into threaded joints using standard tightening methods supporting leak-resistant connection and stable integration in compact piping configurations.